Magneto



Patented Get. 28, 1924.

- 1,513,554 Pics.

ARTHUR C. KLECKNER, OF RAGINE, 'WISCONSIN, ASSLGNOB- TO 'WEBSTER ELECTRIC COMPANY, OF BAOINE, WISCONSIN, A. CORPORATION OF WISCONSIN.

MAGNETO.

Application filed February 23, 1922. Serial No. 538,492.

T all to 710m it may concern Be it known that I, ARTHUR C. KLEOKNER, a citizen of the United States, and resident of Racine, in the county of Racine and State of Visconsin, have invented a certain new and useful improvement in Magnetos, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in magnetos of the type used as ignition apparatus for internal combustion engines, and particularly to magnetos of the oscillating type, which comprise a unitary structure, including make and break contacts adapted to be inserted within the cylinder of an engine.

The object of the present invent-ion is to provide improvements in certain parts of the magneto structure resulting in easier and more perfect adjustment of certain parts, more rigid construction, and less number of parts, and also to render certain partsand appliances more readily accessible for adjustment and operation.

One of the features of the invention is the mounting for the push rod which provides means permitting the easy adjustment of the rod, both longitudinally and laterally.

Another feature. of the invention is the improved manner of mounting the lever for manually actuating the magneto to fire the initial charge in the engine cylinder, withoutcranking the engine.

A still further feature is the improved.

manner of mounting the movable plug contact, and the parts associated therewith.

Other novel features will appear from the following description of the apparatus and its operation.

Ignition devices of the general type heroin disclosed are old and well known. In general, each comprises the make and break plug contacts for insertion within the engine cylinder, a magneto, usually of the oscillating type, means associated with a. moving part of an engine for oscillating and tripping the rotor of the magneto at appropriate intervals, and means for separating the plug contacts at appropriate times.

In general, the magneto and actuating parts are secured to abracket integral with the plug mounting, and the means providing the required power to oscillate the rotor ing rod or other suitable moving part of the engine. v

Referring now to the drawings in which like reference characters sponding parts in the several views,

Figure 1 is a plan view of the ignition device;

Figure is a section substantially onthe line 22 of Figure 1, looking in the direction of the arrows; v

Figure 3 is a. view on the line 39-3 of Figure 1, looking in the direction of the arrows; I v

Figure at is a View of the device as seen from the right in Figure 1;

Figure 5 is a. section on the line 5 5 of Figure 6, and

Figure 6 is a section on the line 66 of Figure 5.

In the drawings, 10 indicates the usual U-shaped or horseshoe magnet between. the parallel ends of which is mounted the magneto 11 of any preferred type. A magneto such as shown in Patent 1,180,889 will be found suitable. The magneto 11 is provided on its opposite sides thereof with the cover plates 12 and 13, each of which is perforated and forms a bearing for the rotor shaft 14. The plate 13 is provided with a perforated boss 15, thus providing an elongated hearing for the shaft 14.

Secured to the magneto as by the bolts 16 is a mounting plate 17 provided with a perforation through which the boss: projects. The mounting plate 17 has the oppositely extending arms 18, each of which is provided near. the extremity thereof with a spring roller post or stud 19. The mounting plate 17 has a. right angularly extending portion 20, the purpose of which. will presently appe The plug flange or clampingplate is indicated at 21. Insulatably and rigidly secured within the clamping plate 21is the fixed or stationary contact 22 of the plug. The contact 22 is provided with a portion which extends through the plate 2l ahd terminates in the binding post 23. The inevable element of the pin is indicated at at. It preferably consists o the shaft 25 rotat able in an opening through the clamping plate 21 and boss 26. The movable element is a push rod carried by the exhaust operatindicate co-rre 24 adjacent to the fixed terminal 22 is provided with the arm 27 terminating in a conof with a projecting ar tact 23 adapted to cooperate with the .nred contact 22.

The plug flange 21 is provided with a right angularly extending portion 29, to which is secured the flange of the mounting plate 17, by means of the bolts 30. Thus, it will be seen that the magneto and its associated parts are supported through the medium of the plug flange or clamping plate 21, which is secured to the face of the engine by means of appropriate bolts or cap screws, with the plug parts 22 and 24. projecting into tl c linder cavity.

Secured to the shaft- 14: is a yoke 31, having the oppositely extending ems 32, each of which is provided with a s1 f1 roller post or stud The tension spring arranged with their opposite ends en... the posts 19 and 33 respectively, and c tend to maintain the rotor c the magneto in a certain definite positi nd upon the" rotor being displaced from us normal position, act to rapidly return it to normal. position, thus creating a high potential impulse of current in the usual and well-known manner.

Mounted on the shaft adjacent: to the yoke 31 is a collar beyond whi h the collar or sleeve 36 on which is l ed the push linger or trigger 37. .sriso r. inted on the shaft 14 adjacent to the collar 36 is a collar 38 provided with the trip finger The various parts 31, 35, 36 and are all rigidly secured. to the rotor shaft. parts may, if preferred. be substantially as shown. in applicants Patent x12 sued November 1, 1921.

The rotatable member or shaft n which the movable plug contact is moun is received atits end remote from the contact in bearing 40 formed in lug 11 pro jecting upwardly from the flange 29 of the plug support. A split collar 42 is non-rotatably secured to shaft 25 by means of the clamping screw 13, which extends through the free ends 44 of the spilt collar. If desired, in order to positively prevent the rotation of the collar 12 on the 25, the shaft 25 may be flattened or cut away on its opposite sides, where engaged. by the collar as indicated by dotted lines in Figure 2. The collar 42 is provided on one side there- A n 415, ngcc to b engaged by t e trip linger 39 carried by t 1 sleeve 38 on shaft l-l. The linger 39 arm 45 are preferably so positioned that the trip finger 39 will engage arm as and rotate shaft 25 to move contact 28 from engagement with contact 22, just after the rotor shaft has passed its normal position in the overthrow which occurs prior to the shaft coming to rest at its normal position.

Positioned about the shaft is spring 16 having one end secured to the pin 4:"? projecting from the arm 15 and the other end secured to a lug 18 formed in the flange 30. The spring 46 has a two-fold function. One function of this spring is to tend to rotate the shaft 25 in a direction to force contact 28 into engagement with contact 22. Another function of the spring 16 is to force the shaft 25 to the right, as seen in Figure 4, thus causing the movable plug element 2 1 to firmly engage its seat, so as to prevent the escape of gas through the flange 21 about the movable plug member.

Projecting upwardly from the plate 17 is an ear 19, to which is secured the laterally extending lug 50. At 51 is shown the man-- ually operated lever by means of which. the rotor is initially actuated in order to fire the charge within the engine cylinder to start the engine without cranking. Lever 51 is provided with a substantially a-rcuate slot 52, through which the stud 50 projects. The lever 51 is retained on the stud 50 by means of the washer 53 and cotter pin 54, or any other desired or suitable manner. Extending upwardly from the yoke 31 is an arm 55, to which is rigidly secured the laterally extending lug 56. Lug 56 is so positioned that when the lever 51 is in the position shown in Figure 2, the lower end of the le ver 51 will engage lug 56. Thus, when the lever 51 is moved to the left, in Figure 2. the yoke 31 will be rotated in a clockwise direction, as viewed in. this figure, into its cocked position. As the rotor reaches substantially its cocked position, the lug 56 will enter the recess or groove 57, in the end of the lever 51. Vfith the lug 56 in the groove 57, the thrust occasioned by the springs 34: is brought directly on the lug 50, and the parts will remain in this relative position until the lever 51 is moved still further to the left in Figure 2, at which time; the rotor is tripped and is snapped back to its nor-- mal position, due to the resiliency of springs 3 1, thus creating a spark to fire the charge within the engine cylinder. The elongated arcuate slot is provided in the lever 51 to permit the upper end of the lever to be returned toward the right, as seen in Figure 2, to operative position after it has been operated. Due to the arcuate nature of the slot. the pressure exerted on the lever 51, tendin to move it to the right, automatically causes the lever to move to a position to place the stud 50 adj acent to the lower end of the slot. When the lever has been moved to the right to a posit-ion substantially as shown in Figure 2, the lever 51 will move downwardly so that the lower end thereof will be in a position to engage lug 56 upon rotating the upper end of the lever to the left.

The lever 51 is provided with a slot 58, the metal punched therefrom being extended laterally to; form the finger 59. After the lever has been operated to initially actuate the rotor, and is in a position with l lil Cal the handle part of the lever pointing to .61, is a collar 62, provided with the upwardly extending arm 63. Arm 63 terminates adjacent to the upper end thereof in a bearing 6%, within which is rotatably mounted the eccentric 65. p Eccentric 65 is provided on one side with the opening 66, and on the opposite side with the depression 67. Formed in the bracket member 63 is a bore 68, within which is a spring 69, and ball or plunger 70. The spring 69 forces the ball 70 toward the eccentric, and tends to maintain the eccentric in its adjusted position whenever the ball is seated within the depression 67, or edge of the opening 68.

The eccentric 65 has an opening 71. therein, through which extends the bearing portion of the stub shaft 72, The shaft 72 is shouldered at 7 3 and a washer 74 is in engagement with the shoulder 73. The eccentric 65 is provided with a flange 7 5 which terminates at one side in a hand piece 76. Adjacent to the flange 75 is a washer 77, the various parts being maintained on the shaft 72 by means of the cotter pin 7 8 or other desired means.

The push rod for actuating the rotor is shown at 79. This push rod is provided at one end with a. pair of substantially parallel flanges 80, which are. arranged to extend on opposite sides of the push finger 37. WVhen the push rod 79 is moved to the right, as seen in Figure 1, the end of the opening between the flanges 80 is arranged to engage the push finger 37, and cause the rotor shaft to be rotated in a clockwise direction, as seen in Figure 2. The push rod 79 is also provided with the downwardly extending flanges 81, each of which has a beveled edge 82 The beveled edges 82 the contour of the collars 35 and 38 are such that after the rotor has been rotated the necessary distance, the push rod is caused to become disengaged from the push finger 37 and permit the rotor to be snapped back to its normal position.

The end of the push rod 79 remote from the push finger 37 is adjustably secured to the end of the shaft 72 by means of the clamping yoke 83, and nuts 84 and 85, which are adjustable along the screw threads 86 at the end of the push rod. The push rod 79 throughout the extent of the threaded portion 86,, which is adapted to engage the shaft 72, is flattened or cut away on its lower side, where it engages the shaft so that rotary motion of the push bar/7 9 is prevented and the flanges 80 and 81 are maintained in proper operative. relation to the parts carried on the rotor shaft. When the nuts 84 and are. adjusted toward each other on the'threaded portion 86, the clamp 83 is caused to firmly engage the end of the shaft 72, thus maintaining the parts securely in adjusted position.

it is found in practice that theoperating rod of the engine, such as the exhaust operating rod 60, herein disclosed, is ofte1itimes laterally displaced in relation to the actuating elements on the rotor shaft. The connection, shown particularly in Figurefi, permits the push bar to be adjusted transversely on the shaft 7 2 and also permits the push rod to be adjusted longitudinally on the shaft 72, The longitudinal adjustmentof the push bar is, of course, providedin order to determine the time of effective oporation of the ignition device. The lateral adjustment of the push bar is provided-in order to bring the bar into alignment with the U1. elements on the rotorshaft,

laterally from the collar 62 is an an n Positioned on the threadedpor iion 8-6 of the push bar isa washer-likemeinher 88 provided with the downwardly and latr ally projecting finger 89. p The tension 90 is arranged with one end in en 7 nt with. theend of the arm 87 and the other engaging an opening in the finger 89, thus tendi' to force the push bar 79 down into en mounted in the rotor shaft. If desired, the washer member 88 may be provided with latera ending v ears 91, which overlie the sides of the yoke member-83, and prevent. rotary displacement of the washer. The eccentric 65 and operating handle 76 are provided in order to retard the time of operation of the spark when the engine is being started, and to advance the spark when the engine is running.

Having thus described my invention, what I claim is new and desire to secure by Letters Patent of the United States is:

1, In combination, a magneto, a rotor shaft, push finger mounted thereon, a push rod arranged to engage said push finger to actuate said rotor shaft, a moving part of the engine, an arm extending therefrom, and means for connecting said push rod to said arm to permit both longitudinal and lateral rectilinear adjustments of said rod. I

2. In combination, a magneto, a rotor shaft, a push finger mounted thereon, a push rod arranged to engage said push finger to actuate said shaft, a moving part of the 'ement with the elements engine, an arm extending therefrom, a stud projecting from said arm, and means for connecting said push rod to said stud ar ranged to permit both} longitudinal and lateral adjustments of said rod With respect to said stud.

3. In combination, a magneto, a rotor shaft, a push finger mounted thereon, a push rod arranged to engage said push finger to actuate said rotor shaft, a moving part of the engine, an arm extending therefrom, a stud projecting from said arm, a yoke connecting said push rod to said stud, and means permitting the adjustment of said. yoke longitudinally of said stud and also longitudinally of said rod.

t. In combination, a magneto, a rotor shaft therefor, a push finger mounted thereon, a, push rod arranged to engage said push finger to actuate said shaft, a moving part of the engine, an arm extending therefrom, a stud projecting from said arm, a yoke formed with substantially parallel portions having perforations therein receiving a portion of said rod, and a loop receiving said stud, and means for clamping said yoke to said rod and stud.

5. In combination, a magneto, a rotor shaft therefor, a push finger mounted thereon, a push rod arranged to engage said push finger to actuate said shaft, a moving part of the engine, an arm extending therefrom, a stud projecting from said arm, screw threads on said rod, a yoke formed with substantially parallel legs having perforations therein receiving the screw threaded por tion of said rod, a loop in said yoke receiving said stud, and nuts on said screw threaded portion of said rod on opposite sides of said legs.

6. Incombination, a magneto, a rotor shaft therefor, a push finger mounted on said shaft, a push rod arranged to engage said push finger to actuate said shaft, moving part of the engine, an arm extending therefrom, a stud projecting from said arm, clamping means for securing said rod to said stud, said rod being provided with a flattened surface at the section Where it is engageable with said stud.

In combination, a magneto, a. rotor shaft therefor, a push finger mounted on said shaft, a push rod arranged to engage said finger to actuate said shaft, a moving part of the engine, an arm extending therefrom, a stud projecting from said arm, screw threads on said rod, a yoke formed with sulr stantially parallel legs having perforations therein receiving the screw threaded poi"- tion of said rod, a loop in said yoke receiving said stud, and means for forcing the legs of said yoke toward each other whereby said rod is clamped to said stud, said rod being provided with a flattened surface throughout the portion adapted to engage said stud.

8. In combination, a magneto, a rotor shaft therefor, a push finger mounted on said shaft, a push. rod arranged to engage said finger to actuate said shaft, a moving part of the engine, a bracket thereon, a stud rotat-ably mounted in said bracket, screw threads on said rod, a yoke about said stud, said yoke being formed with substantially parallel legs having perforations therein receiving the screw threaded portion of said rod, said rod being provided with a flattened surface where it is engageable with said stud, and clamping nuts on said rod on opposite sides of said legs.

In Witness whereof, I hereunto subscribe my name this 18th day of February,

ARTHUR C. KLECKNER.

Witnesses:

J. B. DAVIS, E. M. RAY. 

